how to measure

Width is measured in a straight line from the furthest point on one sidewall, across the tread, to the furthest point on the opposite sidewall.

The aspect ratio is the height of the tire sidewall. A smaller number means a lower profile, and the height-to-width ratio is shown as a percent.

Rim diameter is the diameter of the rim/wheel on which the tire will be mounted, in inches.

tire width
tire aspect ratio
rim diameter
1983 BMW
R80RT
  • Drive Type: Chain
  • Spark Plug: BR8ES
  • Track Length: 136 In.
  • Lug Height: 0.913 in.
  • Battery: YTX14-BS
  • Headlight Bulb: 22309
  • Taillight Bulb: 22323
  • Drive Belt Width: 1 3/8 in.
  • Wear Rods: 031840
For reference only, please consult your owner’s manual to confirm your sizes
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